JPS6283257A - Assembling conveyor of vehicle - Google Patents

Abstract

PURPOSE:To aim at improvement in operation efficiency, by making an engine and rear and front suspensions automatically mountable on a body in an efficient manner with one mounting station. CONSTITUTION:At an engine assembling area 1, there is provided with an engine dress-up line 2 which goes out of the area 1 and returns to it, and in the point midway in this dress-up line 2, there is provided with an engine suspending station 3. On this engine suspending station 3, an engine suspension conveying line 4 is set up, and this conveying line 4 travels on a perimeter frame setting station 5 and a front suspension assembling line 6. In addition, a suspension conveying line 8 is set up on a rear suspension assembling line. A body tact conveying line 10 is branched off from a body conveying line 9 and installed there, while at the lower side of this line 10, there is provided with a station 13 having a positioning station and an automatic mounting device 12.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a vehicle assembly and transportation device.

[Conventional technology]

In the vehicle assembly process, various mounting parts are assembled on an assembly line and transported to a mounting station.
An assembly and transportation method is generally adopted in which various mounting parts are mounted and assembled on the body when the body is delivered.

As an example of such a vehicle assembly and conveyance apparatus, there is a conventional one disclosed in, for example, Japanese Patent Laid-Open No. 60-56682. In other words, this involves transferring the bodies that have been continuously transported by the Ift transport conveyor to the duct transport conveyor, and at the same time transporting the engine on the assembly line by the transport conveyor and placing it on the mounting table of the mounting device, and then transferring the body to the duct transport conveyor. When the machine stops, the loading table is raised to mount the engine on the body, and the mounted body is returned to the continuous transport conveyor. This saves the synchronous drive of the conveyor and reduces the loading work for the operator. This is to make it easier.

[Problem that the invention seeks to solve]

However, in the device described in the above-mentioned conventional publication, the engine was mounted semi-automatically, so it was necessary for the worker to correct the misalignment of the body and assemble it at the mounting station. However, there was still the problem that the installation work was complicated. Also, from the perspective of improving assembly efficiency, it is conceivable to mount the engine and both the front and rear suspensions in one mounting stage, but in that case there is the problem that a large number of workers will be required. Ta.

SUMMARY OF THE INVENTION In view of these problems, it is an object of the present invention to provide a vehicle assembly and transportation device that can efficiently and automatically mount an engine and both suspensions on a body at one mounting station.

[Means for solving problems]

Therefore, the vehicle assembly and conveyance device according to the present invention includes an engine/suspension conveyance means that passes through an engine assembly line and one suspension assembly line, a suspension conveyance means that passes through the other suspension assembly line, and a continuous conveyance means. 19 A loading system that includes a transport means, a positioning station that detects the positional deviation of the body transported by the duct, and an automatic mounting device that automatically mounts the engine and suspension on the body transported by the duct. station and engine
A suspension conveyance means and a mixed conveyance means for alternately supplying the objects carried by the suspension conveyance means toward a mounting station are provided.

[Effect]

In this invention, an engine on each assembly line.

After the front suspension and rear suspension are assembled, the engine and one suspension are transported by the engine/suspension transport means, and
The other suspension is transported by a suspension transport means and these transports are alternately fed towards the loading station by a mixing transport means.

On the other hand, when the body of the vehicle is conveyed by the continuous conveyance means, the body is conveyed through the duct a over the positioning station and the mounting station by the tact conveyance means from the middle, and first at the positioning station, the displacement force of the body < +m is taken out, and when this body comes to the mounting station, the above-mentioned engine and both suspensions are automatically mounted on the line while the position is corrected by the automatic mounting device.In this way, the engine and both suspensions can be efficiently mounted at one mounting station. It is often mounted on the body.

〔Example〕

Embodiments of the present invention will be described below with reference to the drawings.

1 to 6 show a vehicle assembly and conveyance apparatus according to an embodiment of the present invention, which is an example applied to an assembly process of a front-wheel drive vehicle. In the figure, engine assembly area 1
An engine dress-up line 2 is provided which exits the area 1 and returns to the area 1, and an engine hanging station 3 is provided midway along the dress-up line 2. An engine/suspension transport line 4 consisting of an overhead transport conveyor is disposed above the engine hanging station 3, and the transport line 4 passes over a perimeter frame mounting station 5 and a front suspension assembly line 6. Further, on the rear suspension assembly line 7, a suspension conveyance line 8, which is also constituted by an overhead conveyor, is arranged.

On the other hand, the body continuous conveyance line 9 is composed of an overhead conveyor, and a body duct conveyance line IO, which is also composed of an overhead conveyor, is branched in the middle of the body continuous conveyance line 9. Positioning station 11 is located below the line 10.
and a loading station 13 having an automatic loading device 12. Further, the engine/suspension conveyance line 4 and the suspension conveyance line 8 become a mixed conveyance line 14 from the middle, and after passing over the mounting station 13, the mixed conveyance line 14 returns to the engine/suspension conveyance line 14.
It is separated into a suspension conveyance line 4 and a suspension conveyance line 8.

Further, in the body duct a transport line 10, the transport conveyor is constituted by a rank and pinion mechanism 15 as shown in FIG.
A locking pawl 18 is provided to releasably lock the body 21 on the hanger 17, and a drive motor 20 is connected to the pinion 19.
The duct conveys only the pinch determined by 6.

Further, the positioning station 12 is provided with four front and rear visual sensors 22, and the visual sensors 22 are connected to the body 2.
When body 21 is conveyed through a duct and stopped on positioning station 12, a deviation of body 21 from its normal position is detected.

Further, the loading station 13 is provided with a pair of front and rear transfer devices 23, and the transfer 'A' position 23 is provided with upper and lower conveyors 24a, 24b.
b is composed of, for example, a rank and pinion mechanism or a lift and carry mechanism. This Conhair 24a,
At one end of the mixing conveyance line 14, one end of the conveyor belt 24b has an unshelf position for conveyed objects (see A in FIG. 4), an upper conveyor position (see B in FIG. 4), and a lower conveyor position (see B in FIG. 4). C of
A lifter 25 is provided which moves up and down in three stages (see Figure 4), while at the other end of the conveyors 24a and 24b there are two positions: an upper conveyor position (see Figure 4) and a lower conveyor position (see Figure 4E).
A lifter 26 is provided which moves up and down between.

Further, the other end side of the transfer device 23 is provided with the automatic loading device 1.
2 is provided. In this automatic loading device 12, as shown in FIG. 6, a cylinder 28 is provided on a base 27,
A base table 29 is floatingly coupled to the rod end of the cylinder 28, and a first table 30 is mounted on the base table 29 in a direction perpendicular to the Tough l-1 feeding direction.
That is, the body is disposed on the R so as to be movable in the vehicle width direction, and a drive mechanism (not shown) for moving the first table 30 is provided between both tables 29 and 30. Further, a second table 31 is placed on this first table 30 so as to be movable in the duct a transport direction, and a drive mechanism for moving the second table 31 in the body transport direction is provided between both tables 30 and 31. (not shown). Note that these drive mechanisms can be composed of, for example, a rank and pinion mechanism and a drive motor. A third table (mounted table) 33 is rotatably provided, and both tables 31
．． A roller 34 is interposed between the third table 33 and a drive mechanism (not shown) for rotating the third table 33. Note that this drive mechanism can be constituted by a servo motor and a belt mechanism that transmits the driving force to the rotating shaft 32. Further, a nut runner 35 is provided on the side of the third table 33.

Next, the operation will be explained.

When the engine 36 is assembled in the engine assembly area 1, the engine is transferred to the dresser knob line 2 and dressed up while being conveyed through the dress up line 2, and when it comes to the hanging station 3, the engine suspension is conveyed there. It is hung on the line 4 and conveyed along the conveyance line 4. This engine 36 is the engine
When conveyed through the suspension conveyance line 4 to the verimeta frame installation station 5, the perimeter frame 38 is attached to the engine 4 there, and when it is conveyed further and comes on the front suspension assembly line 6, it is placed on the front suspension assembly line 6. The front suspension 37 assembled with the engine 36 and the peripheral frame 3
8, and the engine/front suspension assembly is further transported through the engine/suspension transport line 4. On the other hand, when the rear suspension is assembled on the rear suspension assembly line 7, the rear suspension is hung on the suspension conveyance line 8 and conveyed along the conveyance line 8. In this way, the engine/front suspension assembly and the rear suspension are transported through the respective transport lines 4 and 8, and when they arrive at the mixed transport line 14, the engine/front suspension assembly and the rear suspension are loaded alternately in that order. It is transported toward station 13.

On the other hand, when the automobile body 21 is suspended from the hanger 17 and conveyed through the continuous conveyance line 9, the body 21
is the duct conveyance line 1 by a feeder (not shown) etc.
0, and is duct-transported along the transport line 10 to the positioning station 11 and the mounting station 13 in this order. Then, the body 21 first moves to the positioning station 1.
1, the visual sensor 22 detects the positional deviation from the normal position, and the output of the sensor 22 is sent to the control device (
(not shown). In this control device, the data of the movement trajectory of the loading table 33 of the automatic loading device 12 is stored in advance in the internal memory, and when the output of the visual sensor 22 is input, the data of the movement trajectory is transferred to the visual sensor 22.
The output is corrected, and drive data is generated in accordance with the correction data. Furthermore, the system? Since the arithmetic processing method in the IIl device is the same as a known method, detailed explanation thereof will be omitted.

In addition, at the loading station 13, the bottom lid 25 of the mixing conveyance line 14 is raised to the unloading position A, and the engine/front suspension assembly is moved to the front transfer device 2.
When it reaches the upper side of lifter 25 of No. 3, it is unloaded there, and when it is placed on the pallet 39 on the upper surface of lifter 25, the lifter 2
5 descends to the upper conveyor position B, and the pallet throat 39 on the lifter 25 is locked to the upper conveyor 24a, and is pitch-fed by a rank and pinion mechanism, etc., and is pitch-fed at the other end of the front transfer device 23. Palette 39
is transferred onto the loading table 33 of the automatic loading device (2) by a traverse mechanism (not shown) or the like.

Then, the body 21 of the automobile is located at the positioning station 11.
When the first, second, . The third tables 30, 31, and 33 move and rotate as appropriate, and the engine/front suspension assembly is moved to a position of 1. The engine and front suspension assembly is moved along a predetermined mounting track, and when positioned relative to the body 21, the nut runner 35 is activated and the engine/front suspension assembly is mounted and assembled on the body 21. Also, the rear suspension is automatically installed in the same way as the engine/front suspension assembly! ! 2 placed on the device 12 and mounted on the body 21! 3! Can be assembled.

The assembled body 21 is transported through the duct transport line 10, returned to the continuous transport line 9 by a feeder, etc., and continuously transported again, and then transferred to the mounting station 13.
Then, the loading table 33 of the automatic loading device 12 is lowered, and the empty pallet 39 on the table 33 is drawn into the lifter 26 at the other end of the transfer device 23, and is transferred to the lower conveyor 24a by the lifter 26, and At one end side, the beam lid 25 has been lowered to the lower conveyor position C,
When the empty pallet 39 that has been pinch fed by the lower conveyor 24b is sent again to the upper surface of the lifter 25, the lifter 25
will rise and wait for the next conveyed object to be unloaded.

In the apparatus of this embodiment as described above, while the body is transported through a duct, a front and rear automatic loading device is provided at the loading station to alternately supply the engine/front suspension assembly and rear suspension. Since Tough Nil is automatically installed on the body that is sent,
The engine and both suspensions can be mounted efficiently in one mounting station (can be mounted automatically).

In addition, in this device, a positioning station is installed in front of the mounting station, and the positioning station detects the positional deviation of the body. Based on the detection result, the mounting station corrects the position and performs assembly. The work can be performed more efficiently than in the case of detecting positional deviation, correcting the position, and assembling.

In the above embodiment, the assembly of a front-wheel drive vehicle was explained, but the present invention can of course be similarly applied to the assembly of a front-wheel drive vehicle. Further, the loading table of the automatic loading device does not have to be movable in the duct conveyance direction, one rotation direction in the vehicle body width direction, and the vertical direction, but at least in the duct conveyance direction.

The body may be of any type as long as it can move in the vehicle width direction and in the vertical direction.

Further, in the above embodiment, the positioning station 11
The position of the body 21 detected by the visual sensor 22 of the controller is corrected by adding it to the data stored in the control unit. , provided with a sliding member that can slide in the left and right direction,
This may be done by operating this slide member by servo control or the like.

〔Effect of the invention〕

As described above, according to the vehicle assembly and transportation device according to the present invention,
The engine and one suspension and the other suspension are alternately supplied to the mounting station, the body of the vehicle is transported through a duct, the positioning station detects the positional shift of the body during transport through the duct, and the body is transported through the duct to the mounting station. Since the engine and both suspensions are automatically mounted on the body without having their positions corrected by the automatic mounting device when the engine and both suspensions are mounted, there is an effect that the engine and both suspensions can be efficiently and automatically mounted on the body at one mounting station.

[Brief explanation of drawings]

FIG. 1 is an overall configuration diagram of a vehicle assembly and transfer device according to an embodiment of the present invention, FIG. 2 is a schematic configuration diagram of a positioning station and a loading station in the device, and FIG. 3 is a schematic perspective view of the loading station. FIG. 4 is a block diagram of the transfer device in the above-mentioned loading station, FIG. 5 is a block diagram of the duct transfer line in the above-mentioned device, and FIG. 6 is a block diagram of the automatic loading device in the above-described device. 2... Engine dress amplifier line (engine assembly line), 4... Engine/suspension transfer line (engine/suspension transfer means), 6.7...
Suspension assembly line, 8... Suspension transfer line (suspension transfer means), 9... Continuous transfer line (continuous transfer means), 10... Duct transfer line (duct transfer means), 11... Positioning station, 12... Automatic loading device, 13... Loading station, 14... Mixing conveyance line (mixing conveyance means), 2
1...Body, 36...Engine, 37...Front suspension. Patent applicant: Mazda Motor Corporation agent, patent attorney Ken Hayase - Figure 1

Claims (1)

[Claims] (1) Engine/suspension transport means for transporting the engine and suspension through the engine assembly line and either the front suspension or rear suspension assembly line; a suspension conveyance means for conveying the suspension through the continuous conveyance means; a duct conveyance means branched from the continuous conveyance means for conveying the vehicle body through the duct; and a duct conveyance means provided in the middle of the duct conveyance means for detecting positional deviation of the body conveyed by the duct. a positioning station; and two mounting tables provided on the duct conveying side of the positioning station of the duct conveying means and movable in the duct conveying direction, the vehicle body width direction, and the vertical direction, each carrying the engine, one suspension, and the other suspension. a mounting station having an automatic mounting device that automatically mounts the engine and both suspensions on the body while correcting the position according to the positional deviation of the body; A vehicle assembly and conveyance device comprising: a mixing conveyance means for alternately supplying conveyed articles to the loading station.